Hi Sumit, Forgive my misunderstanding, but are you toggling GPIOs in the ISRs (guessing it's the white channel)? I assume the orange signal is the TX line and so you are saying you see two transmissions occur which should not occur if you are disabling interrupts at the end of the first TX ISR, right? If you step through your code and monitor the flags for SCI TX interrupts, do you see it get set when you step through the first ISR? And then can you check the registers to confirm that the interrupts are getting disabled after stepping over the disableInterrupt function? Best Regards, Allison
↧